According to the IRS all ITINs issued before 2013 with middle digits of 88 (Example: (9XX-88-XXXX) will expire at the end of the year. Those with middle digits 90, 91, 92, 94, 95, 96, 97, 98 or 99, that were assigned before 2013 and have not already been renewed, will also expire at the end of this year.
If your husband's ITIN has these middle numbers then he will have to renew his ITIN.
Please see ITIN Expiration Frequently Asked Questions and Publication 5259 for additional information.